Pressure vessel and method for manufacturing the same

Abstract

A pressure vessel includes: a liner including a cylindrical portion and side portions provided at both ends of the cylindrical portion; and a carbon fiber layer including a first annular layer surrounding a portion of an outer peripheral surface of the cylindrical portion and second annular layers surrounding other portions of the outer peripheral surface of the cylindrical portion, each of the second annular layers having a thickness different from a thickness of the first annular layer.

Description

[0001] Citations for Relevant Applications [0002] This application claims the benefit of priority from Korean Patent Application No. 10-2020-0165541 filed with the Korean Intellectual Property Office on December 1, 2020, the entire contents of which are incorporated herein by reference. technical field [0003] The present disclosure relates to pressure vessels and methods of making the same. Background technique [0004] A hydrogen car is constructed to generate its own electricity through a chemical reaction between hydrogen and oxygen and to travel by operating an electric motor. More specifically, the hydrogen vehicle includes: a hydrogen tank (H 2 tank), configured to store hydrogen (H 2 ); a fuel cell stack constructed to pass hydrogen and oxygen (O 2 ) to produce electricity; various types of devices, configured to discharge the water produced; batteries, configured to store the electricity produced by the fuel cell stack; controllers, configured to convert and c...

AI Technical Summary

Problems solved by technology

[0007] However, if the amount of carbon fiber composite material used to form the carbon fiber layer of the pressure vessel is reduced (for example, if the thickness of the carbon fiber layer is reduced), there is difficulty in securing sufficient structural rigidity (in particular, resistance to The structural rigidity of the hoop stress applied to the cylindrical part of the pressure vessel in the direction) and the deterioration of stability and reliability

[0008] Therefore, recently, various studies have been conducted to ensure structural rigidity and minimize the use of carbon fiber composite materials, but the results of the studies are still insufficient

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